Adjustable cylinder-lock.



H. G. VOIGHT.

ADJUSTABLE OYLINDER LOCK.

APPLICATION IILEI) B11023, 1910.

997,429, Patented Ju1 11,1911.'

. I I W wwwwoeoz G. I OIGHT ovum/ 6 UNITED STATES ATENT OFFICE.

HENRY G. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL &ERWIN OF CONNECTICUT.

ADJUSTABLE CYLINDER-LOCK.

Specification of Letters Patent.

Patented July 11, 1911.

Application filed December 23, 1910. Serial No. 598,908.

. a citizen of the United States, residing at New Britain, Hartfordcounty, State of Connecticut, have invented certain new and usefulImprovements in Adjustable Cylinder- Locks, of which the following is afull, clear, and exact description.

My invention relates to adjustable cylinder locks of the type set forthin my former Patent No. 904,580 of November 24:, 1908.

In the present invention, I have embodied several features ofimprovement.

In the drawings, Figure l is a side elevation, relatively enlarged, onmy look as it would appear in place on a door, certain parts being shownin section. Fig. 2 is a rear end elevation. Fig. 3 is an inside View ofthe lock, one end being removed. Fig. 4:

is a view of the inner end of a part removed from the part shown in Fig.3. Fig. 5 is a side elevation, partly in section, of a detail. Fig. 6 isa longitudinal section of the complete lock. Fig. 7 is a detail View.

1 is a face plate; 2 is a cylinder casing; 3 is a key plug; A is atumbler casing; 6 is a hollow cylindrical shell carried by the faceplate 1. 7 is a second cylindrical shell telescoping with the shell 6.These shells 6 and 7 are each preferably provided with registeringlongitudinal grooves which, when the shells are placed together, preventthe inde pendent rotation of one on the other.

8 represents the rear end plate of the shell 7.

9 is a roll-back carried by the end plate 8 and held in place in anydesired manner. Projecting forwardly from the roll-back 9 is a couplingwhich ina-kesslidable engagement with the end of the key plug 3 where:by, and irrespective of the adjustment of the parts, when the latter isturned said roll-back will likewise be turned. In this particularinstance, the coupling comprises two dowel pins 1010, which take intocorresponding recesses 10**10 in the end of the plug 3 so that the shell7, together with the roll-back 9, may be moved to and fro on the shell 6and relatively to the plug 3, thereby permitting the setback of therollback 9 to be varied to any desired degree to compensate for variousthicknesses of doors.

As shown inthe drawing Fig. 1, 5 represents part of a lock case withwhich the end of the cylinder lock may be secured in the usual manner.Outside of this wall 5 of the lock case is the material of the door D,while on the outside of the door is a rose plate R. As shown, the roseplate It is of the self adjusting type, one part of the rose plate beingarranged to yieldingly press against the rear of the flange of the faceplate 1, so as to make a snug fit at all times.

As shown in Figs. 1 and 3, there is arranged at the rear of the faceplate a plurality of centering devices 17-17 which are so arranged as tocoincide with the circumference of the outer sliding shell, which, asindicated, is of such size as to just pass through the rose plate orescutcheon. Obviously, when the shell is adjusted forwardly, as shown inFig. 1, the inner sleeve or shell 6 would be of insufiicient diameter tosteady the outer end of the lock. To that end, I prefer to provide theaforesaid centering devices as shown.

11 represents an adjusting screw. This adjusting screw is carried by therear end of the plate 8 and is entirely independent of the roll-back 9.The forward end of this screw 11 makes adjustable connection with atubular stud 12, which latter is rigidly secured to the rear of the faceplate 1, for example, by a thread which permits said stud to serve asone of the screws for securing the shell section 6 to the rear of theface plate 1 (see Fig. 6). To adjust the lock to doors of differentthicknesses, the operator simply turns the screw 11 in one direction orthe other to the desired extent, moving said shells 7 and 6 to and froon one another until the proper fit is secured. It will be observed thatpressure outwardly upon the rear of the face plate 1 by the spring roseplat-e R will tend to push the shell section 6 outwardly. Since theshell section 7 is anchored rigidly in the lock case 5, it is obviousthat this outward strain will be taken wholly by the screw 11. In thepresent instance I make this screw 11 entirely independent of theroll-back 9 so that this drag upon the screw will not exert any drag orfriction on said roll-back.

14; represents a slot in one shell; 15 repre sents a removable stop pincarried by the other shell projecting into said slot, said pin operatingto prevent said shells 6 and 7 from being accidentally entirelyseparated. As will be seen, the face plate and the two shells constitutea frame inclosing the key operated means, which may be of any suit abletype, but which, in the form shown, may be of the pin cylinder type,this invention relating more especially to, and having particularadvantage when employed with lock mechanism of the pin cylinder type.

What I claim is:

1. In a cylinder lock, two slidably connected external parts, a faceplate secured to one and a rollback carried by the other, key operatedmeans between said face plate and roll-back. an adjustable connectionbetween said roll back and key operated means whereby all of said partsmay be moved to and fro, and an adjusting device operatively connectingone of said slidable parts with the other, said adjusting device beingindependent of said roll-back and means at the rear of the face plate tocenter and steady the same when the device is in use.

2. In a cylinder lock, two slidably connected external parts, a faceplate secured to one part, a roll-back carried by the other part, keyoperated means between the face plate and the roll-back, an adjustableconnection between said roll-back and said key operated means wherebyall of said parts may be moved to and fro, and an adjusting screwoperatively connecting one of said slidable parts with the other, saidscrew being independent of said roll-back, a threaded sleeve arranged toreceive said adjusting screw, the forward end of said sleeve beingexternally threaded and operating as a fastening screw to connect one ofsaid relatively slidable external parts to said face plate.

3. In a cylinder lock, two slidably connected external parts, a faceplate secured to one and a roll-back secured to the other, key operatedmeans within said slidably connected parts and between the face plateand the roll-back, an adjustable connection between said key operatedmeans and said roll-back whereby all of said parts may be moved to andfro, means for moving said parts to and fro and a stop for preventingthe accidental disconnection of the slidably connected parts.

HENRY G. VOIGHT.

WVitnesses:

M. S. VVIARD, H. J. BROWNE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

